Improvement in machines for pointing wire



F. H. AIKEN.

Machines for Pointing Wire.

No. 143,486. Patented 0m. 7,1873.

Ml. PHUM -Ll7/10GHA/Hl0 :00. M X men/M55 muss) TAT$ ATENT OFFICE,

IMPROVEMENT IN MACHINES FOR POINTING WIRE.

Specification forming part of Letters Patent No. 143,486, dated October7, 1873; application filed March 25, 1873.

To all whom it may concern:

Be it known that I, FRANK H. AIKEN, of

. Franklin, Merrimack county, New Hampshire,

have invented an Improved Machine for Gompressing Articles of Metal, ofwhich the following is a specification:

Figure 1 is a side elevation, and Fig. 2 is an end view.

This invention has for its object the improvement in machines forpointing wire; and consists in the employment of two spur-gears toimpart areciprocatin g movement to the slide having the movable die, oneof said spur-gears revolving upon a fixed axis and meshing with thesecond gear, which rotates on an axis in the reciprocating slide, andthe upper spurgear also being provided with teeth, which are longer thanthe teeth of the lower spur-gear, by means of which a reciprocatingmotion is imparted to the slide, as hereinafter more fully set forth.

In the accompanying drawing I have shown the application of the devicesfor operating the reciprocating slide carrying the movable die to amachine for which I have applied for Letters Patent, and which is nowpending before the United States Patent Office, in which A is the bed ofthe machine, the same affording a means of fastening the apparatus to asuitable foundation. B B are standards rising from said bed, andsupporting the boxes in which is mounted the shaft (J. Near one end ofthe shaft, and outside the standard B, is a spur gear, D, firmly fixedon the shaft. E is 'a reciprocating vertical slide placed beneath thegear D, and inclosed in a case, F, fastened to the outside of thestandard B, and supported in the case by means of a spring, G, passinghorizontally through both the slide and case. Mounted in the upper endof the slide E is another gear, M, engaging with the gear D. The pointsof the teeth of both gears are rounded off, and the spaces between themare hollowed out. The teeth of the gear D are longer than those of thegear M, so that a rotary motion will be given the latter, and at thesame time it will be pressed downward, causing, in conjunction with thespring G, a reciprocating movement to the slide E. H is a hollow shellplaced in suitable bearings I, springing from the bed A, between whichbearings, and on the outside of the shell H, is secured a pulley, J. Kis the blank-holder, having a groove ruiniin g its whole length, intowhich groove a pin eiitends from the inside of the shell H. Instead ofthis arrangement, the shell H might have a slot, and the blank-holder Ka pin to enter said slot. On the extremity of the shaft G is fixed apulley, L, whence a belt proceeds to and around the pulley J.

Suppose two dies attache d-one to the lower end of the reciprocatingslide E, and the other to the bed A directly beneath. Let a blank beinserted in the groove of the holder K, and extend between said dies,said holder being provided with any suitable device for securing theblank. Rotary motion being imparted to the shaft 0, every time one ofthe longer teeth D crosses the right line joining which raises the upperdie, In this way a reciprocating motion is imparted to the upper die,which effects the compression of the blank placed between the two dies.

The motion produced by the two gears may be applied to other purposesthan those herein specified.

It will be seen that in my invention a great advantage is attained overthose machines in which a cam or wheel armed with stubs operates againsta roller in the upper head of the slide to impart to the latter thereciprocating movement, as i11.the latter case there is but onewearing-point, while in my invention there are as many wearing-points asthere are teeth employed in one of the spur-gears.

I claim as my invention- The revolving spur-gear D, in combination withthe revolving spur-gear M, spring G, and reciprocating slide E, carryingthe upper die, when the teeth of the revolving spur-gear D are longerthan those of the revolving spurgear M, substantially as and for thepurpose described.

FRANK I-I. AIKEN. Witnesses:

J. E. MORRILL, A. D. SANBORN.

